Washing-machine casing



April 28, 1931. A; PARTLOW WASHING MACHINE CASING Filed Aug 50, 1928 2Sheets-Sheet 1 awuzml oz Ural/ 043M 6H0: was

April 28, 1931.

v PARTLow WASHING MACHINE CASING Filed Aug. so, 1928 2 Sheets-Sheet 2uarantor fllfred' fdrczdw use in said casing.

Patented Apr. 28, 1931 1 UNITED STATES,

PATENT OFFICE j ALFRED PABTLOW, OF LINCOLN IARK, MICHIGAN, ASSIGNOR- T0VORCLONE CORPORA- TION, O13 MILWAUKEE, WISCONSIN, A CORPORATION OFDELAWARE 'WASHING-MACHINE CASING Application filed August 30, 1928.Serial No. 303,065.

This invention relates to casings-for washing machines and particularlyfor washing machines of the laundry type as distinguished from householdmachines.

.5 An object of the invention is to diminish the radiation of heat froma washing. ma chine casing and at the same time to impart great strengthto the walls of said casing by the end walls so as to facilitate raisingand lowering of a wash-receiving cylinder normally housed within saidcasing and mounted upon trunnions projecting through the casingendwalls.

A further object is .to. provide eliicicnt means for sealing the jointbetween the body of said casing and the covermemberthereof.

Still another object is to form the bottom of a washing machine casingwith a longitudinalslot or othersuitable opening for the discharge ofsuch sediment or dirt as may settle in the bottom portion of saidcasing, and to secure to the under face of the casing, a trough or thelike to receive the discharge through slot;

A. still further object is to, so connect the end walls. ofawashingmachine .casing to the peripheral wall thereof, as to avoidexposure of the rivets connecting said walls 40 to the-liquid contentsof the casing.

These and various other objects the invention attains by theconstruction hereinafter described and illustrated in the accompanyingdrawings,- wherein: r .45

chine casing improved in accordance with the nvention thls view furtherdisclosing a wash-recelvlng cylinder in lts position of Fig. 2 is an endview of the same.

Fig. 3 is a fragmentary: sectional view taken on the line 3-8 of Fig. 2and showing the composite construction of the casing walls and themanner of joining the pa ripheral and end walls of the casing.

Fig. 4: is a fragmentary section on line 4-4 of Fig. 1 showing primarilya trough carried by the bottom of said casing.

Fig. 5 is a fragmentary section taken upon the line 55 of Fig. 2 anddisclosing a means for sealing the joint between stationary and moveableportions of an end wall of the casing.

Fig. 6 is a fragmentary vertical section taken upon the line ,66 of Fig.2 and disclosing a sealing provision surrounding one of the trunnions ofthe wash-receiving cylinder.

Fig. 7 is a perspective detail view of a sealing ring, one of which iscarried by each trunnion of the wash-receiving cylinder at its point ofpassage through the casing wall.

In these views the reference character 1 designates the peripheral wallof the main body of a washing machine casing, and 2 the end walls ofsaidbody. The upper portion of said casing is formed. by a substantial Vsemi-cylindrical cover 3 which is hinged at 4 to the casing wall 1 andrigidly carries segmental upper portions 5 of the casing end walls,having an extent of approximately When the cover member is raised, asindicated in dash lines in Fig. 2, segmental openings in the upperportions of the end 'walls2 areuncovered by the portions 5. 7

Normally housed within; the described casing is a wash-receivingcylinder 7 formed preferably of sheet metal and having its 7 peripheralwallJperforated, as is common practice. Rigidly connected to the ends ofsaid cylinder and outwardly projecting from said ends is a pair oftrunnion shafts 8 v which normally project centrally through F g. 1 1s aviewin front elevationeand. partial vertlcal sectionof awashing ma-' thecasing end walls, as clearly appears in Figs; 1 and 6. The provision ofsegmental openings in the upper portions of said end walls and themounting of segmental closures for said openings upon the hinged covermember is for the pu pose of a ng any interference of the end walls withmovement of the trunnions 8 when the cylinder 7 is lifted from orlowered into the casing.

5 Because of the splashing of the water in the lower portion of thecasingwhen the machine is operating, it is desirable'to establish asubstantially liquid-tight seal between the segments 5 and. thestationary portions 2 of the casing end walls. For this purpose metalsealing bars 9 are riveted or otherwise rigidly secured to thesubstantially radial edges of each segment 5, said bars havingwedge-shapedmargins 10 projecting beyond said edges. Also a pair ofmetallic sealing'bars 11 isrigidly secured to each wall portion 2 of thecasing, along the radial edges thereof, and each of said bars is formedwith a substantially V-sha'ped groove proportioned to snugly receive thewedge portion 10 of the complementary bar 9 when the cover member 3, 5is in closed position.

To liquid-seal the opening through which each trunnion 8 projects, asealing ring 12 is pressed or otherwise mounted'iast upon the trunnionand is formed with a peripheral V-shaped groove 13. In said, groove arenormally engaged V-shaped edges of the upper and lower halves 14 and 15of a sealing ring, said halves being'respectively riveted or otherwiserigidly secured to the seg ment 5 and to the wall portion 2. Thus whenthe cover 3, 5 is in its normal lowered position any escape 'ofwa-terfrom the cylinder at the joints between the segments 5 and wall portions2 or around the trunnions 8 is quite positively prevented.

It sometimes happens that the dirt removed from' a wash formsconsiderable sediment in the bottom portion of the casing of themachine'which interferes with a complete and proper cleaning of thewash. It

"is therefore desirableto provide for the continuous removal of sedimentas rapidly as 'it' settles into the lower portion of the casing.

For this purpose the disclosed construction forms in the bottom of thecasing aslot 16 "extending preferably'the full length of the L casing,said slot opening into an elongated trough 17 0f arcuate "cross-section(best illustrated in Fig. 4) which is riveted or otherwise suitablysecured to the casing bot-' tom. Such settlingsas may enter saidtroughare adapted to be drawn off through a suitable waste pipe 18 which, ifdesired,

may further be used to drain soiled water from the casing.

' A feature of thedescribedconstruction is thetissociation of heatinsulation with the "walls of the stationary portion of the casing so asto minimize radiation of heat from said"'casing"-wl1en1 its contents'are heated.

Thus'as'is best seenin Figs. 3', 4, and 6,

"each end portion 2 of the casing comprises two thicknesses of metal 2and 2 between which is clamped a layer of asbestos or other heatinsulation 2. Similarly the peripheral wall 1 of the casing bodycomprises inner and outer thicknesses of metal 1" and 1 and heatinsulation 1 between said thicknesses. Wherever the walls 2 or 1terminate in a free edge, the asbestos layer 2 or 1 is replaced by astrip of metal 19, through which are passed the rivets which clamptogether the parts of the composite wall. Thus the asbestos layer ishermetically sealed between the two metallic thicknesses of the casingwalls so that it is not subject to deterioration.

In connecting the end wall ortions 2 to the peripheral wall 1 it is preerred to outwardly flange the peripheral margins of the wall members 2as indicated at 21, the flanges 21 being fitted into the ends of thepartial cylinder formed by the wall 1 and being riveted as indicated at22 or otherwise suitably rigidly attached to said end portions.

'A washing machine casing constructed as above described greatlyincreases the length of time during which the liquid contents of awashing machine may be maintained at a working temperature. Thecontinuous discharge of dirt and sediment'intothe trough 17 as fast asit settles to the bottom of the casing permits of a complete andthorough cleaningof the wash regardless of how of the casing end wallspermits the wash receiving cylinder to be'either completelyor partiallyremoved fromthe described casing for the purpose of dumping the contentsof said cylinder.

' While it is apparent thatthe illustrated I embodiment of my inventionherein disclosed is well calculated to adequateIy'fuL fill the objectsand advantages primarily stated, it is to be understood that theinvention is susceptible to variation, modification and change withinthe spirit andscope of the subjoined claims.

What I claim is:

1. In a washing machine, the combination with awash-receiving cylinderhaving trunnions outwardly projecting from its" ends, of acircumferentially continuous sealing ring snugly engaging each trunnion,an open-topped cylindrical casing normally re ceiving'said cylinder, andhaving a removable cover for its top opening, the end walls of saidcasing being formed with openings in their upper portions, extendingfrom said "top opening substantiallyto the casing axis,

said cover comprising closures for the casing end wall openings, saidclosures land the casing end walls being formed jointlywith apertures attheir meeting edges to receive said trunnion, in the closed position ofthe cover, means carried by the casing end walls and said closures atthe edges of said aperture for water sealing engagement with said rings,and means establishing a water-seal between the meeting edges of thecasing end walls and said closures in the closed position of the cover.

2. An open topped sheet-metal cylindrical casing having a coverremovably engageable with its top opening, the casing and its cover eachhaving end walls, meeting edge to edge in the applied position of saidcover, and sealing strips carried by said end walls upon their meetingedges, the strips on certain of said edges being grooved to snuglyreceive the strips on the opposing edges.

3. In a device of the character described, the combination with anopen-topped casing having a cover removably applicable to its topopening, the casing and its cover each having end walls meeting edge toed e in the applied position of the cover, and eing jointly formed attheir meeting edges with circular openings, a container disposed in saidcasing and removable through its top opening and having trunnionsaccommodated by said circular openings, when the container is in thecasing, a sealing ring carried by each trunnion, and sealing memberscarried by the edges of said circular openings adapted for interfittingsealing engagement with said rings.

In testimony whereof I sign this specification.

ALFRED PARTLOW.

